is not happen. it also means coping in terms of its staff level. we know it had a real impact on the number of people who can work. both the nhs and in other private sector industries in the public sector which is why you heard the prime minister saying he was going to be introducing from the 10th of january daily testing for 100,000 critical workers in an attempt to keep critical industries and supply chains going through this current wave. . ~' chains going through this current wave. ., ~ i. chains going through this current wave. ., ~ ,, y chains going through this current wave. ., ~ i. , . thank you very much indeed. millions of pupils across england and northern ireland have gone back to school today. in england, secondary students will have to take covid tests at school, and masks are being re—introduced. here's our education editor, bra nwen jeffreys. both teachers, martyn and lucy, got covid at the same time last term. lucy ended up in hospitalfor a night.